AI Article Synopsis
- The study compared outcomes of high-dose (52.1 Gy) versus low-dose (41.5 Gy) gamma knife radiosurgery in patients with uveal melanoma.
- In the high-dose group, 26% experienced complete tumor regression, while only 12% did in the low-dose group; however, the low-dose group had a higher rate of partial regression at 81%.
- Importantly, the high-dose group had a significantly higher incidence of severe complications like neovascular glaucoma (48% vs. 9%), suggesting that lower doses may be effective with fewer side effects, though follow-up was shorter for that group.
Article Abstract
Object: The authors compared the results of gamma knife radiosurgery in patients with uveal melanoma who underwent high-dose (treated from 1992-1995) and low-dose irradiation (treated from 1996-2002).
Methods: Thirty-one patients with uveal melanomas were treated with a mean margin dose of 52.1 Gy (high dose) and 33 with a mean dose of 41.5 Gy (low dose), and results were compared between groups. The technical procedure was the same in each group except for radiation dose. In the low-dose group, complete tumor regression (scar formation) occurred in 12% and in the high-dose group in 26%. Partial regression (reduction of the tumor prominence between 50 and 80%) occurred in 81% of the low-dose group and in 58% of the high-dose group. Neovascular glaucoma as a severe complication developed in 9% of the low-dose group and in 48% of the high-dose group.
Conclusions: Reduction of the margin dose from 52.1 to 41.5 Gy appears to achieve the same rate of tumor regression but is associated with a lower rate of severe side effects such as neovascular glaucoma. The follow-up period in the low-dose group, however, was much shorter.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3171/jns.2002.97.supplement | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
CT-based airway changes after smoking cessation in the general population.
Eur J Radiol
December 2024
Department of Radiology, University Medical Centre Groningen, Groningen, the Netherlands. Electronic address:
Purpose: Previous research has demonstrated improvements in CT-derived bronchial parameters in the first years after smoking cessation. This study investigates the association between longer smoking cessation duration and bronchial parameters in lung-healthy and lung-unhealthy ex-smokers from the general population.
Materials And Methods: We conducted a cross-sectional analysis using low-dose CT scans of ex-smokers from the general population with at least 10 pack-years from the ImaLife study, a sub study within the Lifelines cohort.
Single immunization with genetically attenuated Pf∆mei2 (GA2) parasites by mosquito bite in controlled human malaria infection: a placebo-controlled randomized trial.
Nat Med
January 2025
Leiden University Center for Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands.
Malaria vaccines consisting of metabolically active Plasmodium falciparum (Pf) sporozoites can offer improved protection compared with currently deployed subunit vaccines. In a previous study, we demonstrated the superior protective efficacy of a three-dose regimen of late-arresting genetically attenuated parasites administered by mosquito bite (GA2-MB) compared with early-arresting counterparts (GA1-MB) against a homologous controlled human malaria infection. Encouraged by these results, we explored the potency of a single GA2-MB immunization in a placebo-controlled randomized trial.
View Article and Find Full Text PDFA preclinical study on effect of betanin on sodium fluoride induced hepatorenal toxicity in wistar rats.
J Complement Integr Med
January 2025
Department of Basic Medical Sciences, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India.
Article Synopsis
- Excessive fluoride exposure can cause oxidative stress and damage metabolic organs, leading to toxicity in the liver and kidneys.
- A study was conducted on Wistar rats divided into four groups, with some receiving sodium fluoride alone and others receiving fluoride with different doses of betanin from beetroot for 90 days.
- Results showed that betanin treatment reduced markers of liver and kidney damage and improved oxidative stress indicators, suggesting it could potentially protect against fluoride-induced organ toxicity.
Antihypertensive effects of rice peptides involve intestinal microbiome alterations and intestinal inflammation alleviation in spontaneously hypertensive rats.
Food Funct
January 2025
Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.
Gut dysbiosis serves as an underlying risk factor for the development of hypertension. The resolution of this dysbiosis has emerged as a promising strategy in improving hypertension. Food-derived bioactive protein peptides have become increasingly more attractive in ameliorating hypertension, primarily due to their anti-inflammatory and anti-oxidant activities.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
University of Western Ontario, London, ON, Canada.
Background: Ambroxol is an expectorant under study as a treatment for synucleinopathies, such as Parkinson's disease. It is a pharmacological chaperone of the lysosomal enzyme β-glucocerebrosidase (GCase), increasing this enzyme and subsequently reducing accumulation of alpha-synuclein. Although the mechanism of enhanced clearance is not fully understood, ambroxol stimulates lysosomal function through activation of transcription factor EB (TFEB), which drives hundreds of lysosomal genes.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!